#include<iostream>
using namespace std;
int n, r[100001], m;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin >> n;
    int x;
    for(int i=1;i<=n;i++){
        cin >> x;
        r[x]++;
        if(r[x]>m) m=r[x];
    }
    cout << m;
    return 0;
}
